Here's another challenge for all you space geeks! If you're able to see it let me know in the comments below!
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Has Saturn Had More than One Ring System?

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Saturn’s rings might only be around a hundred million years old, billions of years younger than some astronomers have suspected, and they might not be the only rings the planet has ever had.
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Sources:
https://solarsystem.nasa.gov/news/794/nasa-research-reveals-saturn-is-losing-its-rings-at-worst-case-scenario-rate/
https://www.nasa.gov/feature/jpl/groundbreaking-science-emerges-from-ultra-close-orbits-of-saturn
http://science.sciencemag.org/content/362/6410/eaat2382
https://www.sciencenewsforstudents.org/article/saturns-rings-might-be-shredded-moons
https://www.universetoday.com/19288/uranus-rings/
http://science.sciencemag.org/content/362/6410/eaat2236
http://science.sciencemag.org/content/362/6410/eaat3185
https://www.sciencedirect.com/science/article/pii/S0019103518302999?via%3Dihub
https://www.nature.com/news/2010/101005/full/news.2010.515.html
https://solarsystem.nasa.gov/news/13021/put-a-ring-on-it/
Images:
https://en.wikipedia.org/wiki/File:Saturn_eclipse.jpg
https://photojournal.jpl.nasa.gov/catalog/PIA12567
https://www.jpl.nasa.gov/video/details.php?id=1464
https://commons.wikimedia.org/wiki/File:Subaru,_Keck_and_IRTF.jpg
https://solarsystem.nasa.gov/resources/17849/translucent-arcs/?category=planets_saturn
https://svs.gsfc.nasa.gov/12672
https://commons.wikimedia.org/wiki/File:8423_20181_1saturn2016.jpg
https://photojournal.jpl.nasa.gov/catalog/PIA01997
https://photojournal.jpl.nasa.gov/catalog/PIA02963
https://photojournal.jpl.nasa.gov/jpeg/PIA22766.jpg
https://commons.wikimedia.org/wiki/File:Saturn_-_December_3_2005_(38019132542).png
https://solarsystem.nasa.gov/resources/605/keck-telescope-views-of-uranus/?category=planets_uranus
https://solarsystem.nasa.gov/resources/17848/group-portrait/?category=planets_saturn
https://commons.wikimedia.org/wiki/File:Ringworld_Waiting.jpg
https://photojournal.jpl.nasa.gov/catalog/PIA02873
https://photojournal.jpl.nasa.gov/catalog/PIA03550
https://en.wikipedia.org/wiki/File:Infrared_Ring_Around_Saturn.jpg
Thumbnail: https://solarsystem.nasa.gov/planets/saturn/in-depth/

We record the Weekly Space Hangout every Wednesday at 5:00 pm Pacific / 8:00 pm Eastern. You can watch us live on Universe Today or the Weekly Space Hangout YouTube page.
Luciano Iess, professor of Aerospace Engineering at Sapienza University of Rome, is a member of the Cassini radio science team that recently determined, after analyzing gravity science data collected during the final orbits of Cassini around Saturn, that its iconic rings are a relatively young feature of the planet.
You can read more about this and the teams other exciting discoveries online at the following sites:
► https://www.sciencemag.org/news/2019/01/missions-expose-surprising-differences-interiors-saturn-and-jupiter
► https://www.jpl.nasa.gov/news/news.php?feature=7315
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Space is Weird | Saturn's Hexagonal Polar Vortex

There is a weird hexagon-shaped storm at Saturn's north pole. Discovered back in 1981 in Voyager images, it's been raging ever since then, but only recently have we been able to explain its shape and recreate the same process in a lab!.
Let me know in the comments what your favourite planet is and why. See if you can convince me that Saturn isn't the best 😉
This is the second in my new Space is Weird playlist. Check out the rest of the playlist here: https://www.youtube.com/playlist?list=PLd19WvC9yqUe6yYMRlRTYUQsH1wVHTy8T
Also if you liked that you'll also like my playlist on some as yet Unsolved Mysteries in Physics: https://www.youtube.com/playlist?list=PLd19WvC9yqUd5G-BZdpUs892Z3mTHozQU
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What time is it on Saturn? - Space Radio LIVE

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The latest space and science news you crave, and of course listener questions!
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Saturn's Rings Are Disappearing

Scientists from NASA Goddard have discovered that not only are Saturn's rings younger than previously thought, but also that the rings are actually disappearing at a rapid pace through a process called "ring rain."
Infrared observations of Saturn were recorded using the 10-meter diameter Keck telescope in Hawaii. Through a careful analysis, Dr. James O'Donoghue and his team found a series of unusual bright and dark bands extending around the planet's upper atmosphere. It was found that these bands are linked to Saturn's rings by magnetic field lines, indicating that water ice from the rings is "raining" into the planet.
This mechanism is called "ring rain," and was discovered using Voyager spacecraft data in the 1980s by study co-author Dr. Jack Connerney. In this process, electrically charged icy dust in Saturn's rings is pulled into the planet along magnetic field lines by gravity. Modeling work by study co-author Dr. Luke Moore shows that if there is a small amount of rain, the ionosphere glows, while if there is a large amount of rain, it becomes dark.
In this new study, the rate of water flow into the planet is estimated to be one Olympic sized swimming pool every half an hour, meaning Saturn's rings will be gone in under 300 million years. This is short relative to the 4.5 billion-year age of the solar system. The findings suggest that giant planetary ring systems are not built to last forever.
This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at: http://svs.gsfc.nasa.gov/12672
Credit: NASA's Goddard Space Flight Center

The world’s premier astronomy and space science podcast.
Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly).
*Saturn’s rings are disappearing
A new study has confirmed that we are seeing the majestic world of Saturn at a unique time in its history with its spectacular ring system about to disappear – at least in astronomical terms.
*The mysteries of Ultima Thule
NASA’s New Horizons spacecraft is now all set up for its new year’s day encounter with the distant Kuiper Belt object 2014MU69 Ultima Thule.
*Expedition 57 crew return home safely after a trouble filled mission
Three Expedition 57 crew have returned safely to Earth after a drama filled stint aboard the International Space station.
You tube video url: http://spacetimewithstuartgary.tumblr.com/post/181314735423
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*New Ocean research satellite
China has launched a new Oceanography science satellite.
*India’s new launch lift record
India has set a new record launching the GSAT-29 telecommunication’s satellite - its heaviest yet payload into orbit.
*Russian military satellite launched
A Russian Proton rocket has carried a new military communication’s satellite into orbit.
*SpaceX launches a US record of 64 satellites on one flight
SpaceX has successfully set an American launch record flying 64 satellites on a single mission.
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*Ariane 5’s sixth launch this year
An Ariane 5 rocket has successfully launched carrying two new satellites into orbit.
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*Moroccan spy satellite launched
Arianespace has launched a new Moroccan military spy satellite.
*New French spy satellite launched
The European Space Agency’s final launch for the year saw a Russian Soyuz ST-A rocket carry a new French spy satellite into orbit.
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*The Science Report
New research has found that cancer cells deprived of mitochondria can't form tumours.
Discovery of a dinosaur air conditioning system.
Archaeologists unearth a two-thousand-year-old ring near the Temple mount.
The benefits of being a crazy cat lady.
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We've only got 100 million years left to enjoy the beauty of Saturn's rings

We've only got 100 million years left to enjoy the beauty of Saturn's rings

Saturn Is Officially Losing Its Rings

Saturn is losing its rings faster than previously thought. Scientists estimate the rings will be gone in 100 million years.
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#Saturn #Space #TechInsider
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Saturn Is Officially Losing Its Rings

Saturn's Rings Are Disappearing

Scientists from NASA Goddard have discovered that not only are Saturn's rings younger than previously thought, but also that the rings are actually disappearing at a rapid pace through a process called "ring rain." Learn more about this phenomena in this animated video.
For more information on this study, please visit: https://www.nasa.gov/press-release/goddard/2018/ring-rain
Video Produced & Edited by: David Ladd
Saturn Ring Rain Animations by: Lisa Poje
Additional Animations by: NASA's Conceptual Image Lab & NASA Jet Propulsion Laboratory
Video narrated by: Jerome Hruska
Music Provided by Killer Tracks: "The Butterfly Effect" - Gresby Race Nash
This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at: http://svs.gsfc.nasa.gov/12672
Credit: NASA's Goddard Space Flight Center
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Carl Sagan on the Exploration of Saturn - The Planetary Society

Carl Sagan on the exploration of Saturn. This video was made for The Planetary Society in 1983.
"What lies beneath Titan's red, organic clouds? We will not know until we send an entry probe into Titan."
-Carl Sagan
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Stay in touch with our monthly e-newsletter: http://www.planetary.org/connect
About The Planetary Society:
The Planetary Society has inspired millions of people to explore other worlds and seek other life. With the mission to empower the world's citizens to advance space science and exploration, its international membership makes the non-governmental Planetary Society the largest space interest group in the world. Carl Sagan, Bruce Murray and Louis Friedman founded the Planetary Society in 1980. Bill Nye, a longtime member of the Planetary Society's Board, serves as CEO."

Saturn is currently very iconic. But in the future that is going to change to the point where it will be barely recognizable. In this video i talk about the changes that will happened.
My twitter: https://twitter.com/Dreksler_Astral
Intro, outro and other clips in the video were made with Space Engine.
Music: Kevin MacLeod - Crypto

NASA Mission Control 360 Live: Cassini’s Finale at Saturn

From the live coverage at 4am PDT on Sept. 15. Go behind the scenes in a 360-degree view inside mission control (with embedded commentary) to see the team await the FINAL signal and science data until the very last moment from our Cassini spacecraft. After nearly 20 years in space, NASA's Cassini mission to Saturn is at the end of its remarkable journey of exploration. The final minutes of the spacecraft, at it enters the atmosphere, begin at 55:48. Project manager Earl Maize calls end of mission at 59:10. A standard format video of commentary is at: https://www.youtube.com/watch?v=V5Ho30EMRm4
Please note: Not all browsers support viewing 360 videos. YouTube supports their playback on computers using Chrome, Firefox, Internet Explorer, and Opera browsers. Use the YouTube app to view it on a smart phone. 2-D video available at http://www.nasa.gov/live

Scientists discover a new cloud structure on Saturn

In a Sept. 3 study published in the journal Nature Communications, researchers said the Cassini mission revealed Saturn has a hexagonal structure which could be several miles tall.

The Hubble Space Telescope captures Mars and Saturn

Mars and Saturn are among the most popular planets. This new episode of the Hubblecast presents the images Hubble took of these planets in summer 2018.
You can subscribe to the Hubblecasts in iTunes, receive future episodes on YouTube or follow us on Vimeo.
Many other Hubblecast episodes are also available.
Find out how to view and contribute subtitles for the Hubblecast in multiple languages, or translate this video on YouTube.
Credit:
Directed by: Mathias Jäger and Nico Bartmann
Editing: Nico Bartmann
Web and technical support: Mathias André and Raquel Yumi Shida
Written by: Calum Turner and Mathias Jäger
Music: written and performed by STAN DART (www.stan-dart.com).
Footage and photos:ESA, NASA, A. Simon (GSFC) and the OPAL Team, J. DePasquale (STScI), and the NASA's Scientific Visualization Studio.
Executive producer: Lars Lindberg Christensen

There’s a Hole in One of Saturn’s Rings

Is a moon to blame for a hole in one of Saturn's rings?
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Researchers Suggest Saturn's Largest Moon Titan Has Potential To Produce Life

According to a report by Geek.com, a new study suggests that Saturn’s largest moon, Titan, may have the potential to produce life as we know it. A team of researchers using data from the Cassini spacecraft examined the icy moon looking for biological molecules. Leader of the study Catherine Neish, found that when exposed to liquid water, organic molecules like the ones on Titan are capable of producing a range of biomolecules, including amino acids. Neish and her team reportedly focused their attention on craters, particularly Sinlap, Selk, and Menrva. The team wrote, “We determine that the best sites to identify biological molecules are deposits of impact melt on the floors of large, fresh impact craters."
https://www.geek.com/news/psst-alien-hunters-check-inside-craters-on-saturns-moon-titan-1746989/?source
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Sounds of Saturn: Hear Radio Emissions of the Planet and Its Moon Enceladus

New research from the up-close Grand Finale orbits of NASA’s Cassini mission shows a surprisingly powerful interaction of plasma waves moving from Saturn to its moon Enceladus. Researchers converted the recording of plasma waves into a “whooshing” audio file that we can hear -- in the same way a radio translates electromagnetic waves into music. Much like air or water, plasma (the fourth state of matter) generates waves to carry energy. The recording was captured by the Radio Plasma Wave Science (RPWS) instrument Sept. 2, 2017, two weeks before Cassini was deliberately plunged into the atmosphere of Saturn.
For more information, visit: saturn.jpl.nasa.gov
Credit: NASA/JPL-Caltech/University of Iowa

Life on Enceladus - Moon of Saturn

Enceladus is a moon of Saturn, and is one of the most promising places for alien life, in this video i take a look at how life could even exist here and i also take a look at another promising world for life Europa.
My twitter: https://twitter.com/Dreksler_Astral
Intro, outro and other clips in the video were made with Space Engine.
Music: Backpacking - Silent Partner

Study Suggests Saturn Helped Jupiter Make Moons

A new study suggests that Saturn played a role in the creation of Jupiter's moons.
According to the researchers, a newly formed Jupiter cleared it's solar orbit of dust and debris.
But a nearby reservoir of rocks likely provided Jupiter with enough stuff to develop 69 moons.
The researchers believe that Saturn's formation pushed some of that debris into Jupiter's orbit, and that rubble eventually formed into it's many moons.
The study's lead author stated their findings illustrate how giant planets shape smaller bodies in planetary systems.
https://www.geek.com/news/study-saturn-helped-form-jupiters-largest-moons-1737792/?source
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This video was produced by YT Wochit News using http://wochit.com

The Misty Mini-Moons of Saturn

And we come to the end of our punt through the waters of the Saturn system, with an examination of its smaller moons
Universe of Water playlist: https://www.youtube.com/playlist?list=PLa0TgREKn12jUoCK0N4qQVgTgGalS6KDG
CORRECTIONS:
13:49 : Water reacts with the crust, causing the crust to combine with the oxygen in the water and hydrogen to be released.
18:20 : Lagrange points are similar to hills; some are low, rolling and stable, others are narrow and sharp, and require constant readjustment to retain position.
22:32 : As can be plainly seen in the diagram, Iapetus's inclination is over 15 degrees, not 7. To be honest I can't remember where I came up with that one.
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Phobos and Saturn

These observations of Phobos and Saturn were taken by the Super Resolution Channel of the High Resolution Stereo Camera on Mars Express. The video comprises 30 separate images acquired during Mars Express orbit 16 346 on 26 November 2016. The slight up and down movement of Saturn and Phobos in these images is caused by the oscillation of the spacecraft’s orientation after completing the turn towards the moon. Phobos can be seen in the foreground, partially illuminated, with Saturn visible as a small ringed dot in the distance.
For more information go to http://www.esa.int/Our_Activities/Space_Science/Mars_Express/Mars_Express_views_moons_set_against_Saturn_s_rings

You Could Live on One of These Moons With an Oxygen Mask and Heavy Jacket

Looking for a new home beyond Earth? Icy moons could be a hot contender.
Waves Can Tell Us A Lot About Climate Change, But You Have To Catch Them First
https://www.youtube.com/watch?v=toeoYNQNZgA
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Future Space Colony? Maybe We Should Look Beyond Mars to Saturn's Titan Moon
https://www.seeker.com/space/exploration/future-space-colony-maybe-we-should-look-beyond-mars-to-saturns-titan-moon
“NASA and Elon Musk’s SpaceX are focused on getting astronauts to Mars and even one day establishing a colony on the Red Planet — but what if their attention is better directed elsewhere? “
What It Would Be Like to Live on Saturn's Moons Titan and Enceladus
https://www.space.com/28786-living-on-saturn-moons-titan-enceladus.html
“Without a solid surface, Saturn isn't likely a place we could ever live. But the gas giant does have numerous moons, some of which would make fascinating locations for space colonies, particularly Titan and Enceladus.”
Plumes From Saturn’s Moon Enceladus Hint That It Could Support Life
https://www.nytimes.com/2017/04/13/science/saturn-cassini-moon-enceladus.html?mtrref=undefined
“Could icy moons like Saturn’s Enceladus in the outer solar system be home to microbes or other forms of alien life? Intriguing new findings from data collected by NASA’s Cassini spacecraft suggest the possibility.”
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The Wild Waters of Saturn's Rings

Saturn's rings are a celestial river flowing above the clouds of their planet. Here is the story of how we learned that.
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NASA Shares Cassini's Stunning Farewell Image Mosaic Of Saturn

NASA recently shared Cassini’s farewell mosaic, which was stitched together from 42 red, green, and blue pictures taken in the final stages of Cassini’s mission.

Here’s Everything You Need to Know About Saturn’s Iconic Rings

Saturn’s rings are iconic and instantly recognizable, but what exactly are they and how did they form in the first place?
NASA Just Revealed There Could Be Life On Saturn's Moon, Enceladus - https://youtu.be/YIVh53TBonM
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Read More:
What Are Saturn's Rings?
https://www.livescience.com/60412-what-are-saturn-rings.html
“The rings are mostly ice with a little bit of rock mixed in. Scientists have a better grasp of their dynamics than ever before, thanks to the Cassini spacecraft, which ends its mission on Friday (Sept. 15) with a plunge into Saturn's atmosphere, after 13 years of orbiting the planet.”
Cassini Prepares to Crash Into Saturn as NASA Reflects on Mission's Discoveries
https://www.seeker.com/space/planets/cassini-prepares-to-crash-into-saturn-as-nasa-reflects-on-missions-discoveries
“The probe has spent more than a decade observing Saturn, studying storms in its cloud tops, learning about its strange, striped atmosphere, probing its cloaked interior and zipping through its more than 60 moons and a ring system stretching more than eight times the planet's radius.”
Peculiar Waves in Saturn's Rings Spotted by NASA's Cassini Probe
https://www.seeker.com/space/planets/peculiar-waves-in-saturns-rings-spotted-by-nasas-cassini-probe
“The rings of Saturn are embedded with billions of water-ice particles ranging in size from grains of sand to monstrous chunks. Saturn's rings also feature waves that propagate outward in spiral patterns. The new image from Cassini captures an up-close view of a spiral density wave visible in Saturn's B ring.”
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Where did water come from in the universe? Research points to Jupiter or Saturn - TomoNews

BORDEAUX, FRANCE — A study published in the journal Icarus, suggest that Earth's water is a "simple byproduct" of giant planet growth.
During the formation of gas giants such as Saturn or Jupiter, they enter a period of rapid growth. This destabilized nearby water-rich space rocks known as planetesimals[e], bringing them into the planetary orbit.
Next, the gravity there would have propelled these to the inner or outer solar system.
The researchers speculate some were sent in an inward direction, toward some early form of Earth and seeded it with water.
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NASA's Cassini Spacecraft Makes Grand Finale Plunge

NASA's Cassini spacecraft made its final grand finale plunge into Saturn's atmosphere Sept. 15, 2017. Chuck Dovale, deputy manager of the Launch Services Program (LSP), talks about the mission and LSP's overall support to process the Cassini-Huygens spacecraft and prepare it for launch Oct. 15, 1997.

On 15 september 2017 NASA’s Cassini spacecraft has ended its mission.It was launched on 15 october 1997.Cassini traveled seven years through and across 2.2 billion miles of space to reach Saturn.

Last Images Of Saturn From NASA's Cassini Spacecraft

They were taken by NASA's Cassini spacecraft just days before it crashed into Saturn. The results are spectacular.
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Farewell to Cassini on This Week @NASA – September 15, 2017

On Sept. 15, our Cassini spacecraft concluded its remarkable mission with a plunge into Saturn’s atmosphere. This was the last of 22 close orbits Cassini made between Saturn and its rings as part of the mission’s Grand Finale. No other spacecraft has ever explored this unique region. Although the spacecraft may be gone after the finale, the enormous amount of data collected about Saturn, its magnetosphere, rings and moons during this last dive is expected to yield new discoveries for decades. Also, Recovering from Irma, New Crew Launches to the Space Station, Successful Orion Chute Test and Shane Kimbrough in Washington!
This video is available for download from NASA's Image and Video Library: https://images.nasa.gov/#/details-NHQ_2017_0915_Farewell%20to%20Cassini%20on%20This%20Week%[email protected]%20%E2%80%93%20September%2015,%202017.html

Goodbye Cassini

NASA’s Cassini Spacecraft Ends Its Historic Exploration of Saturn
A thrilling epoch in the exploration of our solar system came to a close today, as NASA's Cassini spacecraft made a fateful plunge into the atmosphere of Saturn, ending its 13-year tour of the ringed planet.
Cassini's plunge brings to a close a series of 22 weekly "Grand Finale" dives between Saturn and its rings, a feat never before attempted by any spacecraft.
This video is available for download from NASA's Image and Video Library:
https://images.nasa.gov/#/details-NHQ_2017_0915_Goodbye%20Cassini.html

Cassini End of Mission Commentary

On Sept. 15, NASA's Cassini spacecraft completed its remarkable story of exploration with an intentional plunge into Saturn's atmosphere, ending its mission after nearly 20 years in space. Live commentary of Cassini’s end of mission activities was shown on NASA TV and the agency’s website. Launched in 1997, Cassini arrived in orbit around Saturn in 2004 on a mission to study the giant planet, its rings, moons and magnetosphere.
This video is available for download from NASA's Image and Video Library: https://images.nasa.gov/#/details-NHQ_2017_0915_Cassini%20End%20of%20Mission%20Commentary.html

NASA Mission Control 360 Live: Cassini’s Finale at Saturn

Commentary begins at 2:13. Go behind the scenes in a 360-degree view inside mission control (with embedded commentary) to see the team await the FINAL signal and science data until the very last moment from our Cassini spacecraft. This is live-streamed coverage from 4am PDT on Sept. 15: After nearly 20 years in space, NASA's Cassini mission to Saturn is at the end of its remarkable journey of exploration. The final minutes of the spacecraft, at it enters the atmosphere, begin at 55:48. Project manager Earl Maize calls end of mission at 59:10. A standard format video of commentary is at: https://www.youtube.com/watch?v=V5Ho30EMRm4
Please note: Not all browsers support viewing 360 videos. YouTube supports their playback on computers using Chrome, Firefox, Internet Explorer, and Opera browsers. Use the YouTube app to view it on a smart phone. 2-D video available at http://www.nasa.gov/live

Saturn 101 | National Geographic

How did the rings around Saturn form? How many moons does the planet have? See stunning NASA images of the gas giant studied by Christian Huygens and Giovanni Cassini.
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About National Geographic:
National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.
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Saturn 101 | National Geographic
https://youtu.be/epZdZaEQhS0
National Geographic
https://www.youtube.com/natgeo

WASHINGTON — NASA's Cassini spacecraft is now on course for its last mission that will see it dive and disintegrate into Saturn's atmosphere on Friday.
Cassini has been traveling around Saturn and its moons for 13 years, but it is finally running out of fuel, so NASA wants the probe disposed of properly, Space.com reported.
The probe sped within 73,974 miles (119,049 kms) of Titan on Sept. 11 in a flyby meant to lower the spacecraft's orbit enough to ensure it will crash into Saturn's atmosphere, NASA officials said, according to Space.com.
The main purpose of this last mission is to make sure that Cassini does not contaminate the moons of Titan or Enceladus with Earth microbes.
Scientists think the two moons could possibly support life. Enceladus has an ocean of liquid water underneath its icy shell, as well as hydrothermal hot spots in the ocean.
Titan is also believed to have a subsurface water ocean. The moon also has lakes and seas of hydrocarbons on its surface.
Once Cassini enters Saturn's thick atmosphere, it will take approximately five to six minutes for the probe to fall apart and melt. During its last dive, the probe will be sending data back to Earth in real time for researchers to analyze.
----------------------------------------­---------------------
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Cassini Grand Finale: Explained

On Friday, September 15, 2017, NASA's Cassini spacecraft will end its incredible 13-year mission by crashing into Saturn. Astronimate shows you unbelievable photos and videos to explain how this dramatic mission will come to a close, and how you can be there when it does!

Looking Back On The Cassini-Huygens Mission to Saturn

Originally launched in 1997 the Cassini-Huygens mission was one of the largest space probes ever, a massive space exploration mission which would spend over a decade orbiting Saturn and sending back over 600 gigabytes of scientific data.
Using data and images from NASA's Cassini team I talk about the voyages.
(and yes I mispronounce a couple of moon names)
Background Music is by Kai Angel
http://freemusicarchive.org/music/Kai_Engel/
https://www.kai-engel.com/
'daemones'
'daedalus'
'Chance'
'Denoument'
'modum'
'periculum'

NASA Previews Cassini End of Mission Activities

On Sept. 13, NASA held a news conference from the agency’s Jet Propulsion Laboratory, in Pasadena, California to discuss details of final mission activities for the agency’s Cassini mission to Saturn. On Sept. 15, the Cassini spacecraft will complete its remarkable story of exploration with an intentional plunge into Saturn's atmosphere, ending its mission after nearly 20 years in space.

What has NASA's Cassini seen during its Grand Finale?

In two days time, Cassini will reach the last stage of its Grand Finale when it enters Saturn's atmosphere. Leading up to this moment, Cassini has been approaching the planet closer than it ever has done before. What has it seen and discovered during this time?
In this video, I showcase the shepherd moons, rings, and planet of Saturn, giving context to the things Cassini has imaged during the Grand Finale.
Just to mention in case it isn't clear in the video, all the imagery in this video is real images taken by Cassini during the Grand Finale. The only imagery which is CGI is the animations where Cassini is in the shot.
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Image Credits:
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Artist's Impression of Saturn - Mrs Kayros Art - https://www.facebook.com/mrs.kayros.art
Music Credits:
Obscured - Mark LaFountain - https://soundcloud.com/mindveneration
A Walk Into Space - Topher Mohr & Alex Elena

Cassini Burns into Saturn After Grand Finale | Out There

NASA’s Cassini spacecraft will plunge into Saturn on September 15, incinerating itself after 20 years in space.
Subscribe on YouTube: http://bit.ly/U8Ys7n
Nasa's Cassini grand finale ends on September 15th as it will burn into Saturn. It's photos of Saturns rings are the clearest we have ever seen.
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Cassini Grand Finale Burns into Saturn | Out There
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Exploring Saturn's Moons | Mission Saturn

On a flyby of Saturn's moon Enceladus, the Cassini spacecraft makes an unprecedented discovery that will push the mission to fly closer.
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➡ MISSION SATURN AIRS FRIDAY SEPTEMBER 15 at 9/8c.
About Mission Saturn:
NASA’s biggest spacecraft plunges into Saturn in the final act of a 20-year mission showcasing the planet like never before.
About National Geographic:
National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.
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Exploring Saturn's Moons | Mission Saturn
https://youtu.be/QxFSn_LTJkg
National Geographic
https://www.youtube.com/natgeo

Cassini's Infrared Saturn | Director's Cut

The Cassini-Huygens mission arrived at Saturn in 2004, beginning an epic thirteen-year tour of the ringed planet and its many moons. Cassini and its companion probe, Huygens, were an international collaboration between NASA and the European Space Agency (ESA). Cassini carried an impressive array of scientific instruments, including the Composite Infrared Spectrometer (CIRS) built at Goddard Space Flight Center. By studying the Saturn system in heat radiation, CIRS observed hot spots in a giant Saturn storm, discovered a new hydrocarbon in Titan's smoggy atmosphere, found unexpected surface heating on Mimas and Tethys, and even detected evidence of a liquid water ocean under the icy shell of Enceladus. Join instrument team members Mike Flasar, Conor Nixon, and Carrie Anderson as they retell Cassini CIRS' greatest hits. This director's cut version features an extended introduction and conclusion.
Read more: https://www.nasa.gov/feature/goddard/2017/excitement-and-tears-as-nasa-goddard-team-prepares-for-cassini-finale
Credit: NASA’s Goddard Space Flight Center/Dan Gallagher
Music provided by Killer Tracks: "Journey in the Milky Way," "Odyssey," "Solaris," "Expansive," "Horizon Ahead," "Ion Bridge," "Outer Space"
This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at: https://svs.gsfc.nasa.gov/12709
If you liked this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/NASAExplorer
Or subscribe to NASA’s Goddard Shorts HD Podcast: https://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html
Follow NASA’s Goddard Space Flight Center
· Facebook: https://www.facebook.com/NASA.GSFC
· Twitter https://twitter.com/NASAGoddard
· Flickr https://www.flickr.com/photos/gsfc/
· Instagram https://www.instagram.com/nasagoddard/
· Google+ https://plus.google.com/+NASAGoddard/posts

Cassini's Infrared Saturn

The Cassini-Huygens mission arrived at Saturn in 2004, beginning an epic thirteen-year tour of the ringed planet and its many moons. Cassini and its companion probe, Huygens, were an international collaboration between NASA and the European Space Agency (ESA). Cassini carried an impressive array of scientific instruments, including the Composite Infrared Spectrometer (CIRS) built at Goddard Space Flight Center. By studying the Saturn system in heat radiation, CIRS observed hot spots in a giant Saturn storm, discovered a new hydrocarbon in Titan's smoggy atmosphere, found unexpected surface heating on Mimas and Tethys, and even detected evidence of a liquid water ocean under the icy shell of Enceladus. This video explores Cassini CIRS' Greatest Hits, as told by instrument team members Michael Flasar, Conor Nixon, and Carrie Anderson.
Read more: https://www.nasa.gov/feature/goddard/2017/excitement-and-tears-as-nasa-goddard-team-prepares-for-cassini-finale
View Directors Cut: https://youtu.be/7AbLq1nDuR8
Credit: NASA’s Goddard Space Flight Center/Dan Gallagher
Music provided by Killer Tracks: "Particle Waves," "Odyssey," "Solaris," "Expansive," "Horizon Ahead," "Ion Bridge," "Outer Space"
This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at: https://svs.gsfc.nasa.gov/12709
If you liked this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/NASAExplorer
Or subscribe to NASA’s Goddard Shorts HD Podcast: https://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html
Follow NASA’s Goddard Space Flight Center
· Facebook: https://www.facebook.com/NASA.GSFC
· Twitter https://twitter.com/NASAGoddard
· Flickr https://www.flickr.com/photos/gsfc/
· Instagram https://www.instagram.com/nasagoddard/
· Google+ https://plus.google.com/+NASAGoddard/posts

Cassini diving into history

Following over a decade of ground-breaking discoveries, Cassini is now approaching its mission end.
With little fuel left to correct the NASA's spacecraft trajectory, it has been decided to end the mission by plunging it into Saturn’s atmosphere on 15 September 2017. In the process, Cassini will burn up, satisfying planetary protection requirements to avoid possible contamination of any moons of Saturn that could have conditions suitable for life. These include Saturn’s largest moon Titan and Enceladus, which has a liquid ocean under its icy crust.
The grand finale is not only a spectacular way to complete this extraordinary mission, but will also return a bounty of unique scientific data that was not possible to collect during the previous phases of the mission. Cassini has never ventured into the area between Saturn and its rings before, so the new set of orbits is almost like a whole new mission.
These close orbits will provide the highest resolution observations ever achieved of the inner rings and the planet's clouds. The orbits will also give the chance to examine in situ the material in the rings and plasma environment of Saturn. It will also probe the planet's magnetic field at close distances.
This video explains Cassini 's final operations, what the Cassini-Huygens mission has taught us about Saturn, the potential for life on its moons and the promise of more science to come.
More about Cassini-Huygens:
http://www.esa.int/Our_Activities/Space_Science/Cassini-Huygens

After 20 years in space, the Cassini-Huygens spacecraft will make its suicide plunge into Saturn's atmosphere on Sept. 15. For the team of scientists who began working on the project in the 1980s, it means the end of decades of work that led to scientific progress and never-before-seen images of Saturn's rings, moons and surface. Photo: NASA Video: Dipti Kapadia/The Wall Street Journal
Don’t miss a WSJ video, subscribe here: http://bit.ly/14Q81Xy
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Is Dark Energy Getting Stronger?

Learn More about The Great Courses Plus: http://ow.ly/wvWC30o0QYV
Check out the new Space Time Merch Store!
https://pbsspacetime.com/
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The power of Dark Energy may be increasing as the universe ages. Subtle clues are emerging that the accepted model for the nature of dark energy and dark matter may not be all that. We saw the first such clue recently in our recent episode on the Crisis in Cosmology. Today we’re doing a Space Time Journal Club to reveal another clue. We’re looking at a new paper in Nature Astronomy, “Cosmological constraints from the Hubble diagram of quasars at high redshifts” by Risaliti and Lusso. It hints that the cosmological constant may not be so constant after all. In fact it may be increasing. If this is true, then our prediction for the future of our universe looks VERY different, and may involve the entire universe tearing itself to shreds at the subatomic level in the Big Rip.
On this edition of Space Time Journal Club we look at:
Risaliti & Lusso (2019) "Cosmological Constraints from the Hubble Diagram of Quasars at High Redshifts"
https://www.nature.com/articles/s41550-018-0657-z
#darkenergy #darkmatter #spacetime
More about The Great Courses Plus:
The Great Courses Plus is currently available to watch through a web browser to almost anyone in the world and optimized for the US, UK, and Australian markets. The Great Courses Plus is currently working to both optimize the product globally and accept credit card payments globally.
Learn More About Dark Energy Here:
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Hosted by Matt O'Dowd
Written by Matt O'Dowd
Graphics by Aaron Halevy
Directing by Andrew Kornhaber
Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters:
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سلطان الخليفي

NASA ScienceCasts: A Super Start to 2019

2019 is an excellent year to look to the sky and enjoy the spectacular view of Earth’s nearest neighbor, the Moon.
NASA Science: http://science.nasa.gov/

Do black holes contain dark matter?

Black holes grow by accreting matter under gravity; so surely they should be able to accrete dark matter? So then is there loads of dark matter trapped inside black holes?
Turns out it's a bit more complicated than that because of what we know of how dark matter behaves - which isn't a lot! - but it's enough.
This was a really fun speculative question to think about, especially because it ties in with my PhD thesis too. Let me know if you want me to do a video describing my thesis down in the comments.
Both my lapel microphones ran out of battery this week. Thankfully one of them didn't need a battery to use with a smartphone, so the sound was recorded that way. It's not brilliant I know, but it'll do. My research schedule this week stopped me from delaying filming until I could get a battery. The sound suffered so science wouldn't.
iIf you have questions you want me to answer either tweet them to me (https://twitter.com/drbecky_) or leave them in the comments below. I'm more likely to see stuff on Twitter!
Please subscribe if you haven't already and click the little bell icon to be notified when I post a new video!
My sister made the frame in the background as a present when I passed my PhD. She does commissions: https://megansmethurstdesign.wordpress.com/work/
I also present videos on Sixty Symbols: https://www.youtube.com/user/sixtysymbols
and Deep Sky Videos: https://www.youtube.com/user/DeepSkyVideos
------
Dr. Becky Smethurst is a Junior Research Fellow at Christ Church at the University of Oxford.
Twitter: https://twitter.com/drbecky_
http://drbecky.uk.com

Space Weather News | A Filament Sandwiched by Sunspots 03.20.2019

UPDATE: Part of the filament I talk about did erupt after I posted this video! We could have a part-Earth directed solar storm coming by the end of this week! Check my twitter feed for the latest on arrival time!
Original Video Description:
This week we are coming down from a solar storm from some fast solar wind, but that doesn't mean the fun is over! We have two fast-growing sunspots on the Earth-facing Sun and they are sandwiching a filament that is growing more unstable by the day. If this filament erupts within the next day or so, we could have an Earth-directed solar storm! We are keeping a close watch on this to be sure. Also, one of the new sunspots may be showing signs of an influence of solar cycle 25. Just like the previous rogue sunspot we saw a few weeks ago, this new region has a dominant magnetic signature that runs north-south instead of east-west. Its too early to tell what the final polarity of this region will be, but if it continues this way, it will be yet another signal that solar cycle 25 is closer than we think! Learn the details of this filament sandwich, get the scoop on the two new sunspots that may cause its launch, and see what else our Sun has in store for us this week!
To get early access to my forecasts plus more visit:
http://patreon.com/SpaceWeatherWoman
For daily and often hourly updates (during active times) visit me on Twitter:
https://twitter.com/TamithaSkov
For a more in-depth look at the data and images highlighted in this video see these links below.
Solar Imaging and Analysis:
SDO: http://sdo.gsfc.nasa.gov/data/
Helioviewer: http://www.helioviewer.org/
Flare Analysis: http://www.lmsal.com/solarsoft/latest_events/
Computer Aided CME Tracking CACTUS: http://www.sidc.oma.be/cactus/out/latestCMEs.html
GOES Xray: http://www.swpc.noaa.gov/rt_plots/xray_1m.html
SOHO: http://sohodata.nascom.nasa.gov/
Stereo: http://stereo.gsfc.nasa.gov/
GONG magnetic field synoptic movie: https://gong.nso.edu/data/magmap/standard_movie.html
GONG magnetic field synoptic charts: http://gong.nso.edu/data/magmap/
LMSAL Heliophysics Events HEK http://www.lmsal.com/isolsearch
Solar Wind:
DISCOVR solar wind: http://www.swpc.noaa.gov/products/real-time-solar-wind
ACE Solar Wind: http://www.swpc.noaa.gov/products/ace-real-time-solar-wind
NASA ENLIL SPIRAL: https://iswa.gsfc.nasa.gov/IswaSystemWebApp/iSWACygnetStreamer?timestamp=2038-01-23+00%3A44%3A00&window=-1&cygnetId=261
NOAA ENLIL SPIRAL: http://www.swpc.noaa.gov/products/wsa-enlil-solar-wind-prediction
Magnetosphere, Ionosphere, Atmosphere:
GOES Magnetometer: http://www.swpc.noaa.gov/products/goes-magnetometer
Ionosphere D-Region Absorption (DRAP) model: http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap/
Auroral Oval Ovation Products: http://www.swpc.noaa.gov/products/aurora-30-minute-forecast
Global 3-hr Kp index: http://www.swpc.noaa.gov/products/planetary-k-index
Wing Kp index prediction: http://www.swpc.noaa.gov/products/wing-kp
USGS Ground Magnetometers: http://geomag.usgs.gov/realtime/
USGS Disturbance Storm-Time (Dst): http://geomag.usgs.gov/realtime/dst/
NAIRAS Radiation Storm Model: http://sol.spacenvironment.net/raps_ops/current_files/globeView.html
Multi-Purpose Space Environment Sites:
NOAA/SWPC: http://www.swpc.noaa.gov
SOLARHAM: http://www.solarham.net/index.htm
Spaceweather: http://spaceweather.com
iSWA: http://iswa.gsfc.nasa.gov/iswa/iSWA.html
Definition of Geomagnetic Storm, Radiation Storm, and Radio Blackout Levels:
http://www.swpc.noaa.gov/NOAAscales/
None of this would be possible without the hard work and dedication of those who have provided all of this data for public use.
Images c/o NASA/ESA/CSA (most notably the superb SDO, SOHO, ACE, STEREO, CCMC, JPL & DSN teams, amazing professionals, hobbyists, institutions, organizations, agencies and amateurs such as those at the USAF/HAARP, NICT, NOAA, USGS, Environment Canada, Natural Resources Canada, Intellicast, Catatania, rice.edu, wisc.edu, sonoma.edu ucalgary.ca, rssi.ru, ohio-state.edu, solen.info, and more. Thanks for making Space Weather part of our every day dialogue.

HiClip: In the Gullies and Bedrock of Ius Chasma (Mars)

This image was acquired in Ius Chasma, a major section of the giant Valles Marineris trough.
(Audio: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km. For images with scale bars, refer to the link below.)
NASA/JPL/University of Arizona
https://uahirise.org/ESP_058580_1720

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